Performance analysis of pilot-channel-assisted log-likelihood-ratio selective combining

Author

Chu, Xiaoli ; Murch, Ross

Author_Institution

Div. of Eng., Kings Coll. London, London

fYear

2008

Firstpage

1

Lastpage

5

Abstract

In this paper, we provide performance analysis for a pilot-channel-assisted log-likelihood-ratio selective combining (PCA-LLR-SC) scheme that is designed to support robust long-range low-rate UWB communications targeted by the IEEE 802.15.4a. Including the loss of orthogonality between data and pilot pulses caused by the UWB multipath channel, a closed-form bit-error-rate expression is derived, and verified by comparisons with simulation results. Our analytical result shows its accuracy in performance evaluation for the PCA-LLR-SC scheme and confirms that PCA-LLR-SC is able to support robust low-rate UWB communications in fast-fading multipath channels.

Keywords

fading channels; multipath channels; personal area networks; ultra wideband communication; IEEE 802.15.4; UWB multipath channel; fast-fading channels; pilot-channel-assisted log-likelihood-ratio selective combining; Bit error rate; Delay; Fading; Fingers; Multipath channels; Performance analysis; Physical layer; Pulse modulation; Robustness; Ultra wideband communication; BER; UWB; multipath; orthogonality;

fLanguage

English

Publisher

ieee

Conference_Titel

Personal, Indoor and Mobile Radio Communications, 2008. PIMRC 2008. IEEE 19th International Symposium on

Conference_Location

Cannes

Print_ISBN

978-1-4244-2643-0

Electronic_ISBN

978-1-4244-2644-7

Type

conf

DOI

10.1109/PIMRC.2008.4699415

Filename

4699415